The correct answer is C.
The question asks: What is the gaucho's life like? The potential answers are: a) full of family and friends, b) relaxed, or c) solitary. The gaucho is often equated to the American cowboy. As such, you can imagine a nomadic figure who doesn't exactly surround himself with friends and families. Likewise, the life of a cowboy (and gaucho) is anything but relaxed, as they both work with horses and cattle, and are generally seen as unruly toward authority.